Alert archive / Illinois / Flash Flood Warnings in 2014
Flash Flood Warning 29, NWS Lincoln, IL
NWS Lincoln, IL issued this flash flood warning at Aug 28, 2014, 9:01 PM CDT for Logan County, Sangamon County, Illinois. It was in force for 3 hr. No storm report in the archive falls inside the area while it was in force.
The area
The outline as issued.
The facts
- Issued
- Aug 28, 2014, 9:01 PM CDT (02:01 UTC)
- Expired
- Aug 29, 2014, 12:00 AM CDT
- In force
- 3 hr
- Issued by
- NWS Lincoln, IL
- Area
- Storm-based polygon
- Flood severity
- None
Counties Logan County, IL, Sangamon County, IL
The radar
The Lincoln radar (KILX), 21 km from the middle of the area, began a volume at 02:05 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Davenport, (KDVN), launched 00:00Z, 2.0 hours before the alert went out and 211 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 172 J/kg
- Mixed-layer CIN
- -90 J/kg
- Mixed-layer LCL
- 744 m above ground
- 0-6 km bulk shear
- 25 kt
- 0-1 km storm-relative helicity
- 152 m²/s²
- 0-3 km storm-relative helicity
- 237 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.1
The text
As transmitted, in the capitals the NWS used until 2016.
984
WGUS53 KILX 290201
FFWILX
ILC107-167-290500-
/O.NEW.KILX.FF.W.0029.140829T0201Z-140829T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
BULLETIN - EAS ACTIVATION REQUESTED
FLASH FLOOD WARNING
NATIONAL WEATHER SERVICE LINCOLN IL
901 PM CDT THU AUG 28 2014
THE NATIONAL WEATHER SERVICE IN LINCOLN HAS ISSUED A
* FLASH FLOOD WARNING FOR...
EASTERN LOGAN COUNTY IN CENTRAL ILLINOIS...
NORTHEASTERN SANGAMON COUNTY IN CENTRAL ILLINOIS...
* UNTIL MIDNIGHT CDT
* AT 858 PM CDT...NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED
SLOW MOVING THUNDERSTORMS WITH VERY HEAVY RAINFALL ACROSS THE
WARNED AREA. RADAR ESTIMATES AROUND 2 INCHES OF RAIN HAS FALLEN
ACROSS PARTS OF THE WARNING AREA IN THE PAST HOUR. NUMEROUS GROUND
TRUTH REPORTS OF SIMILAR RAINFALL RATES HAVE BEEN RECEIVED WITH
THESE STORMS TO THE WEST OF THE WARNING AREA.
* RUNOFF FROM THIS EXCESSIVE RAINFALL WILL CAUSE FLASH FLOODING TO
OCCUR. SOME LOCATIONS THAT WILL EXPERIENCE FLOODING INCLUDE...
BEASON... CHESTNUT...CORNLAND...ILLIOPOLIS...LATHAM...
MECHANICSBURG AND MOUNT PULASKI.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
DO NOT DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE
ROADWAY. THE WATER DEPTH MAY BE TOO GREAT TO ALLOW YOUR CAR TO CROSS
SAFELY.
&&
LAT...LON 4010 8914 3992 8914 3992 8922 3981 8921
3983 8925 3979 8929 3975 8962 3982 8952
4005 8936 4022 8931 4024 8915
$$
BAK1 follow-up statement
695
WGUS73 KILX 290427
FFSILX
FLASH FLOOD STATEMENT
NATIONAL WEATHER SERVICE LINCOLN IL
1127 PM CDT THU AUG 28 2014
ILC107-167-290442-
/O.CAN.KILX.FF.W.0029.000000T0000Z-140829T0500Z/
/00000.0.ER.000000T0000Z.000000T0000Z.000000T0000Z.OO/
LOGAN IL-SANGAMON IL-
1127 PM CDT THU AUG 28 2014
...THE FLASH FLOOD WARNING THAT WAS IN EFFECT FOR NORTHEASTERN
SANGAMON AND EASTERN LOGAN COUNTIES IS CANCELLED...
EXCESS RUNOFF FROM HEAVY RAIN HAS ENDED OVER THE WARNED
AREA...ENDING THE FLASH FLOOD THREAT. HOWEVER...FLOODING IS STILL
OCCURRING IN AND AROUND SPRINGFIELD AND IN SOME LOW LYING RURAL
AREAS. IF FLOODING HAS BEEN OBSERVED...PLEASE REPORT IT TO YOUR
LOCAL LAW ENFORCEMENT AGENCY.
LAT...LON 4010 8914 3992 8914 3992 8922 3981 8921
3983 8925 3979 8929 3975 8962 3982 8952
4005 8936 4022 8931 4024 8915
$$
BAKThe office that day
Everything else NWS Lincoln, IL issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 28, 8:05 PM CDT | Flash Flood Warning | ILX | Logan, Mason, Menard | 3 hr |
| Aug 28, 8:10 PM CDT | Areal Flood Advisory | ILX | Sangamon | 3 hr |
| Aug 28, 8:25 PM CDT | Flash Flood Warning | ILX | Logan, Menard, Sangamon | 3 hr |
| Aug 28, 9:34 PM CDT | Flash Flood Warning | ILX | Christian, Sangamon | 3 hr |
| Aug 28, 9:51 PM CDT | Flash Flood Warning | ILX | Macon | 3 hr |
| Aug 28, 11:23 PM CDT | Areal Flood Warning | ILX | Sangamon | 6 hr |
Nearby
Flash Flood Warnings in Illinois, 2014Every flash flood warning in 2014
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.